SilverStone Strider Gold SST-ST1200-G Evolution 1200W ATX 12V v2.3/EPS 12V 80 PLUS GOLD Certified 100% Module, Active PFC Power Supply. 88% 91% at 20% 100% loading, Ultra silent 139mm Air Penetrator fan with fluid dynamic bearing, FF141 magnetized fan filter included, 1200W(1300W peak power) 24hour fully continuous output, Class-leading single +12V real with 100A, Strict 3% voltage regulation and low ripple & noise.